Adobe Flash Player阻止HTTP响应的问题
我有一个项目，我一直在兼职工作，现在应该提交。我通过以太网连接到外部plc并尝试使用HTTP请求从设备检索数据。我有这个工作，数据以XML格式接收回来，我能够解析这些数据并将其提交到数据库。
我现在才提交项目，工作的内容已不再有效！我没有收到XML格式的数据，而是收到安装Adobe Flash Player的消息。在调查问题时，谷歌和其他浏览器已经禁用了如何控制如何使用Flash播放器的一些功能。以前当我运行程序时，我必须在所有站点上启用Flash播放器，这很有效。现在我只允许在指定的站点上启用它，无论我输入什么选项，我仍然会收到同样的错误。
关于HTTP连接，我得到一个代码200响应，显示连接正在工作，但我无法获取我一直得到的数据。
自Chrome改变其政策以来，还有其他人遇到此问题吗？我尝试过其他浏览器，但同样的问题。我已尝试使用较早版本的Chrome进行回溯跟踪，但只能将.exe文件单独运行而不是安装在计算机上，因此Netbeans无法识别它。我已经尝试过Firefox及其扩展版本，这是为了在2018年3月/ 4月之前解决这些问题，但我也遇到了同样的问题。
任何见解或帮助都将受到赞赏。
这是服务器信息
这是信息请求的结果
import java.io.PrintWriter;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.Cookie;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathExpressionException;
import javax.xml.xpath.XPathFactory;
import java.util.logging.Level;
import java.util.logging.Logger;
import com.squareup.okhttp.MediaType;
import com.squareup.okhttp.OkHttpClient;
import com.squareup.okhttp.Request;
import com.squareup.okhttp.RequestBody;
import com.squareup.okhttp.Response;
import java.io.ByteArrayInputStream;
import org.xml.sax.SAXException;
import org.w3c.dom.Document;
import org.xml.sax.*;
import javax.xml.parsers.*;
import java.sql.DriverManager;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.*;
/**
*
* @author ******
*/
@WebServlet(urlPatterns = {"/DeviceReadDateTime"})
public class DanfossDeviceReadDateTime extends HttpServlet {
/**
* Processes requests for both HTTP <code>GET</code> and <code>POST</code>
* methods.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
String userName;
String userPassword;
String siteAddress;
String tagReference;
String reportType;
String danfossResponseXMLReturned;
String danfossReadDateTimeYear;
String danfossReadDateTimeMonth;
String danfossReadDateTimeDay;
String danfossReadDateTimeHour;
String danfossReadDateTimeMinute;
String danfossReadDateTimeSecond;
String danfossReadDateTimeEpoch;
String danfossReadDateTimeTimeZone;
String danfossReadDateTimeDayLightSavings;
Connection conn;
PreparedStatement prepStat;
Statement stat;
ResultSet rs = null;
/**
*
* @throws ServletException
*/
@Override
public void init() throws ServletException
{
String connectionUrl ="jdbc:sqlserver://localhost:***;" +
"databaseName=*******************;user=**;password=*****";
try{
// establishing the connection
Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
conn = DriverManager.getConnection(connectionUrl);
System.out.println("You are connected to SQLServer 2014");
// stat = (Statement) conn.createStatement();
// retrieve data
/* Statement st = (Statement) conn.createStatement();
ResultSet rs1 = st.executeQuery("select * from danfossDateTime");
while(rs1.next()){
danfossReadDateTimeYear = rs1.getString(1);
danfossReadDateTimeMonth = rs1.getString(2);
danfossReadDateTimeDay = rs1.getString(3);
danfossReadDateTimeHour = rs1.getString(4);
danfossReadDateTimeMinute = rs1.getString(5);
danfossReadDateTimeSecond = rs1.getString(6);
danfossReadDateTimeEpoch = rs1.getString(7);
danfossReadDateTimeTimeZone = rs1.getString(8);
danfossReadDateTimeDayLightSavings = rs1.getString(9);
System.out.println("danfossReadDateTimeYear = " + danfossReadDateTimeYear + "\n"
+ "danfossReadDateTimeMonth = " + danfossReadDateTimeMonth + "\n"
+ "danfossReadDateTimeDay = " + danfossReadDateTimeDay
+ "danfossReadDateTimeHour = " + danfossReadDateTimeHour + "\n"
+ "danfossReadDateTimeMinute = " + danfossReadDateTimeMinute + "\n"
+ "danfossReadDateTimeSecond = " + danfossReadDateTimeSecond + "\n"
+ "danfossReadDateTimeEpoch = " + danfossReadDateTimeEpoch + "\n"
+ "danfossReadDateTimeTimeZone = " + danfossReadDateTimeTimeZone + "\n"
+ "danfossReadDateTimeDayLightSavings = " + danfossReadDateTimeDayLightSavings + "\n");
}
System.out.println("Data retrieved from MS SQL");
*/
} catch (SQLException | ClassNotFoundException ex) {
Logger.getLogger(DanfossDeviceReadDateTime.class.getName()).log(Level.SEVERE, null, ex);
}
}// end of init method// end of init method// end of init method// end of init method
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException, SQLException {
response.setContentType("text/html;charset=UTF-8");
PrintWriter out = response.getWriter();
Cookie cookie = null;
Cookie cookiesArray[] = null;
//get an array of cookies associated with this domain
cookiesArray = request.getCookies();
if(cookiesArray != null)
{
for(int i = 0; i<cookiesArray.length; i++)
{
cookie = cookiesArray[i];
switch (cookie.getName()) {
case "userName":
userName = cookie.getValue();
break;
case "userPassword":
userPassword = cookie.getValue();
break;
case "siteAddress":
siteAddress = cookie.getValue();
siteAddress = ("http:\\").concat(siteAddress);
break;
}
}
}
//Code requesting that data from the danfoss unit
XPath path;
String xmlString = "<?xml version=\"1.0\" encoding=\"utf-8\"?>\r\n\r\n<cmd action=\"read_date_time\" node =\"1\"/>\r\n\r\n";
OkHttpClient client = new OkHttpClient();
MediaType mediaType = MediaType.parse("application/octet-stream");
RequestBody body = RequestBody.create(mediaType, xmlString);
Request danfossRequest = new Request.Builder()
.url(siteAddress)
.post(body)
.build();
System.out.println("danfossRequest = " + danfossRequest);
Response danfossResponse = client.newCall(danfossRequest).execute();
System.out.println("danfossResponse = " + danfossResponse);
// converting string to xml and parsing
danfossResponseXMLReturned = danfossResponse.body().string();
System.out.println("danfossResponseXMLReturned = " + danfossResponseXMLReturned);
XMLReader parser;
try {
Document dbfactory =DocumentBuilderFactory.newInstance().newDocumentBuilder().parse(new InputSource(new ByteArrayInputStream(danfossResponseXMLReturned.getBytes("utf-8"))));
XPathFactory xpfactory = XPathFactory.newInstance();
path = xpfactory.newXPath();
danfossReadDateTimeYear = path.evaluate("/resp/year", dbfactory);
danfossReadDateTimeMonth = path.evaluate("/resp/month", dbfactory);
danfossReadDateTimeDay = path.evaluate("/resp/day", dbfactory);
danfossReadDateTimeHour = path.evaluate("/resp/hour", dbfactory);
danfossReadDateTimeMinute = path.evaluate("/resp/minute", dbfactory);
danfossReadDateTimeSecond = path.evaluate("/resp/second", dbfactory);
danfossReadDateTimeEpoch = path.evaluate("/resp/epoch", dbfactory);
danfossReadDateTimeTimeZone = path.evaluate("/resp/timezone", dbfactory);
danfossReadDateTimeDayLightSavings = path.evaluate("/resp/daylightsavings", dbfactory);
//print results
System.out.println("danfossReadDateTimeYear = " + danfossReadDateTimeYear);
System.out.println("danfossReadDateTimeMonth = " + danfossReadDateTimeMonth);
} catch (FactoryConfigurationError err) {
System.err.println ("can't create JAXP SAXParserFactory, "
+ err.getMessage ());
} catch (ParserConfigurationException err) {
System.err.println ("can't create XMLReader with namespaces, "
+ err.getMessage ());
} catch (SAXException err) {
System.err.println ("Hmm, SAXException, " + err.getMessage ());
} catch (XPathExpressionException ex) {
Logger.getLogger(DanfossDeviceReadDevices.class.getName()).log(Level.SEVERE, null, ex);
}
System.out.println(danfossReadDateTimeYear);
System.out.println(danfossReadDateTimeMonth);
System.out.println(danfossReadDateTimeDay);
System.out.println(danfossReadDateTimeHour);
System.out.println(danfossReadDateTimeMinute);
System.out.println(danfossReadDateTimeSecond);
System.out.println(danfossReadDateTimeEpoch);
System.out.println(danfossReadDateTimeTimeZone);
System.out.println(danfossReadDateTimeDayLightSavings);
// submit data to database
/* try{
String query = "INSERT INTO danfossDateTime VALUES (?,?,?,?,?,?,?,?,?)";
prepStat = (PreparedStatement) conn.prepareStatement(query);
prepStat.setString(1,danfossReadDateTimeYear);
prepStat.setString(2,danfossReadDateTimeMonth);
prepStat.setString(3,danfossReadDateTimeDay);
prepStat.setString(4,danfossReadDateTimeHour);
prepStat.setString(5,danfossReadDateTimeMinute);
prepStat.setString(6,danfossReadDateTimeSecond);
prepStat.setString(7,danfossReadDateTimeEpoch);
prepStat.setString(8,danfossReadDateTimeTimeZone);
prepStat.setString(9,danfossReadDateTimeDayLightSavings);
prepStat.executeUpdate();
}catch(Exception e)
{
}
*/
//html page output
response.setContentType("text/html;charset=UTF-8");
// out = response.getWriter();
String title = "***";
String docType = "<!doctype html>";
out.println(docType + "<html>\n" +
"<head>\n" +
" <title>***</title>\n" +
" <link rel=\"stylesheet\" type=\"text/css\" href=\"***RemoteSiteDataCheckerCSS2.css\"/>\n" +
"</head>\n" +
"<body>\n" +
" \n" +
" \n" +
" <section id=\"logo\">\n" +
" <!-- Introduction on the company -->\n" +
" <header>\n" +
" <center><h1>**************</h1></center>\n" +
" \n" +
" <center><h3>Remote Site Data Checker</h3></center>\n" +
" </header>\n" +
" </section>\n" +
" \n" +
" \n" +
" \n" +
" <section>\n" +
" <form action=\"SubmitTestData\" method=\"POST\">\n" +
" <label>User Name</label> <input type=\"text\" name=\"userName\" value=\"" + userName + "\">\n" +
" <br>\n" +
" <label>Password</label> <input type=\"password\" name=\"userPassword\" value=\"" + userPassword + "\">\n" +
" <br>\n" +
" <label>Site Address</label> <input type=\"text\" name=\"siteAddress\" value=\"" + siteAddress + "\">\n" +
" <br>\n" +
" <label></label><input type=\"submit\" value=\"Submit Test Data\"/>\n" +
" \n" +
" </form>\n" +
" </section> \n" +
" \n" +
" <section>\n" +
" <form>\n" +
" <label>Results:</label>\n" +
" \n" +
" <textarea name=\"resultsTextBox\" rows=\"10\" cols=\"80\" wrap=\"hard\">\n" +
" Results now here...\n" + danfossResponseXMLReturned +
" \nFrom XML Dom BUilder - year = " + danfossReadDateTimeYear +
" \nFrom XML Dom BUilder - month = " + danfossReadDateTimeMonth +
" \nFrom XML Dom BUilder - day = " + danfossReadDateTimeDay +
" \nFrom XML Dom BUilder - hour = " + danfossReadDateTimeHour +
" \nFrom XML Dom BUilder - minute = " + danfossReadDateTimeMinute +
" \nFrom XML Dom BUilder - second = " + danfossReadDateTimeSecond +
" \nFrom XML Dom BUilder - epoch = " + danfossReadDateTimeEpoch +
" \nFrom XML Dom BUilder - timezone = " + danfossReadDateTimeTimeZone +
" \nFrom XML Dom BUilder - daylightsavings = " + danfossReadDateTimeDayLightSavings +
" </textarea>\n" +
" </form>\n" +
" </section> \n" +
" \n<section>\n" +
" <button onclick=\"location.href='index.html'\">Home Page</button>\n" +
" <button onclick=\"location.href='DanfossDeviceHome.html'\">Generate New Report</button>\n" +
" \n" +
" </section>" +
" \n" +
" <footer>\n" +
" <!-- Footer -->\n" +
" <hr>\n" +
" \n" +
" <p>**********************</p>\n" +
" </footer>\n" +
" \n" +
"</body>\n" +
"</html>\n" +
"\n");
}
// <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
/**
* Handles the HTTP <code>GET</code> method.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
try {
processRequest(request, response);
} catch (SQLException ex) {
Logger.getLogger(DanfossDeviceReadDateTime.class.getName()).log(Level.SEVERE, null, ex);
}
}
/**
* Handles the HTTP <code>POST</code> method.
*
* @param request servlet request
* @param response servlet response
* @throws ServletException if a servlet-specific error occurs
* @throws IOException if an I/O error occurs
*/
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
try {
processRequest(request, response);
} catch (SQLException ex) {
Logger.getLogger(DanfossDeviceReadDateTime.class.getName()).log(Level.SEVERE, null, ex);
}
}
/**
* Returns a short description of the servlet.
*
* @return a String containing servlet description
*/
@Override
public String getServletInfo() {
return "Short description";
}// </editor-fold>
}
这基本上告诉我安装Adobe Flash Player，因为我已经看到哪些已经完成！
以下是servlet中的代码。
{{1}}
0 个答案:
没有答案
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